12 // written by LordHavoc in a readable way, optimized by Vic, further optimized by LordHavoc (the non-special index case), readable version preserved below this
13 void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
16 const unsigned char *in, *line;
17 int row_inc = (inputflipy ? -inputwidth : inputwidth) * numinputcomponents, col_inc = (inputflipx ? -1 : 1) * numinputcomponents;
18 int row_ofs = (inputflipy ? (inputheight - 1) * inputwidth * numinputcomponents : 0), col_ofs = (inputflipx ? (inputwidth - 1) * numinputcomponents : 0);
20 for (c = 0; c < numoutputcomponents; c++)
21 if (outputinputcomponentindices[c] & 0x80000000)
23 if (c < numoutputcomponents)
25 // special indices used
26 if (inputflipdiagonal)
28 for (x = 0, line = inpixels + col_ofs; x < inputwidth; x++, line += col_inc)
29 for (y = 0, in = line + row_ofs; y < inputheight; y++, in += row_inc, outpixels += numoutputcomponents)
30 for (c = 0; c < numoutputcomponents; c++)
31 outpixels[c] = ((index = outputinputcomponentindices[c]) & 0x80000000) ? index : in[index];
35 for (y = 0, line = inpixels + row_ofs; y < inputheight; y++, line += row_inc)
36 for (x = 0, in = line + col_ofs; x < inputwidth; x++, in += col_inc, outpixels += numoutputcomponents)
37 for (c = 0; c < numoutputcomponents; c++)
38 outpixels[c] = ((index = outputinputcomponentindices[c]) & 0x80000000) ? index : in[index];
43 // special indices not used
44 if (inputflipdiagonal)
46 for (x = 0, line = inpixels + col_ofs; x < inputwidth; x++, line += col_inc)
47 for (y = 0, in = line + row_ofs; y < inputheight; y++, in += row_inc, outpixels += numoutputcomponents)
48 for (c = 0; c < numoutputcomponents; c++)
49 outpixels[c] = in[outputinputcomponentindices[c]];
53 for (y = 0, line = inpixels + row_ofs; y < inputheight; y++, line += row_inc)
54 for (x = 0, in = line + col_ofs; x < inputwidth; x++, in += col_inc, outpixels += numoutputcomponents)
55 for (c = 0; c < numoutputcomponents; c++)
56 outpixels[c] = in[outputinputcomponentindices[c]];
61 // intentionally readable version
62 void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
65 const unsigned char *in, *inrow, *incolumn;
66 if (inputflipdiagonal)
68 for (x = 0;x < inputwidth;x++)
70 for (y = 0;y < inputheight;y++)
72 in = inpixels + ((inputflipy ? inputheight - 1 - y : y) * inputwidth + (inputflipx ? inputwidth - 1 - x : x)) * numinputcomponents;
73 for (c = 0;c < numoutputcomponents;c++)
75 index = outputinputcomponentindices[c];
76 if (index & 0x80000000)
79 *outpixels++ = in[index];
86 for (y = 0;y < inputheight;y++)
88 for (x = 0;x < inputwidth;x++)
90 in = inpixels + ((inputflipy ? inputheight - 1 - y : y) * inputwidth + (inputflipx ? inputwidth - 1 - x : x)) * numinputcomponents;
91 for (c = 0;c < numoutputcomponents;c++)
93 index = outputinputcomponentindices[c];
94 if (index & 0x80000000)
97 *outpixels++ = in[index];
105 void Image_GammaRemapRGB(const unsigned char *in, unsigned char *out, int pixels, const unsigned char *gammar, const unsigned char *gammag, const unsigned char *gammab)
109 out[0] = gammar[in[0]];
110 out[1] = gammag[in[1]];
111 out[2] = gammab[in[2]];
117 // note: pal must be 32bit color
118 void Image_Copy8bitBGRA(const unsigned char *in, unsigned char *out, int pixels, const unsigned int *pal)
120 int *iout = (int *)out;
123 iout[0] = pal[in[0]];
124 iout[1] = pal[in[1]];
125 iout[2] = pal[in[2]];
126 iout[3] = pal[in[3]];
127 iout[4] = pal[in[4]];
128 iout[5] = pal[in[5]];
129 iout[6] = pal[in[6]];
130 iout[7] = pal[in[7]];
137 iout[0] = pal[in[0]];
138 iout[1] = pal[in[1]];
139 iout[2] = pal[in[2]];
140 iout[3] = pal[in[3]];
146 iout[0] = pal[in[0]];
147 iout[1] = pal[in[1]];
152 iout[0] = pal[in[0]];
156 =================================================================
160 =================================================================
169 unsigned short xmin,ymin,xmax,ymax;
170 unsigned short hres,vres;
171 unsigned char palette[48];
174 unsigned short bytes_per_line;
175 unsigned short palette_type;
184 unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize)
187 unsigned char *a, *b, *image_buffer, *pbuf;
188 const unsigned char *palette, *fin, *enddata;
189 int x, y, x2, dataByte;
191 if (filesize < (int)sizeof(pcx) + 768)
193 Con_Print("Bad pcx file\n");
199 memcpy(&pcx, fin, sizeof(pcx));
202 // LordHavoc: big-endian support ported from QF newtree
203 pcx.xmax = LittleShort (pcx.xmax);
204 pcx.xmin = LittleShort (pcx.xmin);
205 pcx.ymax = LittleShort (pcx.ymax);
206 pcx.ymin = LittleShort (pcx.ymin);
207 pcx.hres = LittleShort (pcx.hres);
208 pcx.vres = LittleShort (pcx.vres);
209 pcx.bytes_per_line = LittleShort (pcx.bytes_per_line);
210 pcx.palette_type = LittleShort (pcx.palette_type);
212 image_width = pcx.xmax + 1 - pcx.xmin;
213 image_height = pcx.ymax + 1 - pcx.ymin;
214 if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
216 Con_Print("Bad pcx file\n");
220 palette = f + filesize - 768;
222 image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width*image_height*4);
225 Con_Printf("LoadPCX: not enough memory for %i by %i image\n", image_width, image_height);
228 pbuf = image_buffer + image_width*image_height*3;
231 for (y = 0;y < image_height && fin < enddata;y++)
233 a = pbuf + y * image_width;
234 for (x = 0;x < image_width && fin < enddata;)
241 x2 = x + (dataByte & 0x3F);
243 if (x2 > image_width)
244 x2 = image_width; // technically an error
251 while(x < image_width)
258 for(x = 0;x < image_width*image_height;x++)
275 qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pixels, int outwidth, int outheight)
279 const unsigned char *fin, *enddata;
280 int x, y, x2, dataByte, pcxwidth, pcxheight;
282 if (filesize < (int)sizeof(pcx) + 768)
285 image_width = outwidth;
286 image_height = outheight;
289 memcpy(&pcx, fin, sizeof(pcx));
292 // LordHavoc: big-endian support ported from QF newtree
293 pcx.xmax = LittleShort (pcx.xmax);
294 pcx.xmin = LittleShort (pcx.xmin);
295 pcx.ymax = LittleShort (pcx.ymax);
296 pcx.ymin = LittleShort (pcx.ymin);
297 pcx.hres = LittleShort (pcx.hres);
298 pcx.vres = LittleShort (pcx.vres);
299 pcx.bytes_per_line = LittleShort (pcx.bytes_per_line);
300 pcx.palette_type = LittleShort (pcx.palette_type);
302 pcxwidth = pcx.xmax + 1 - pcx.xmin;
303 pcxheight = pcx.ymax + 1 - pcx.ymin;
304 if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || pcxwidth > 4096 || pcxheight > 4096 || pcxwidth <= 0 || pcxheight <= 0)
307 enddata = f + filesize - 768;
309 for (y = 0;y < outheight && fin < enddata;y++)
311 a = pixels + y * outwidth;
312 // pad the output with blank lines if needed
315 memset(a, 0, outwidth);
318 for (x = 0;x < pcxwidth;)
325 x2 = x + (dataByte & 0x3F);
337 if (x < outwidth) // truncate to destination width
350 =========================================================
354 =========================================================
357 typedef struct _TargaHeader
359 unsigned char id_length, colormap_type, image_type;
360 unsigned short colormap_index, colormap_length;
361 unsigned char colormap_size;
362 unsigned short x_origin, y_origin, width, height;
363 unsigned char pixel_size, attributes;
367 void PrintTargaHeader(TargaHeader *t)
369 Con_Printf("TargaHeader:\nuint8 id_length = %i;\nuint8 colormap_type = %i;\nuint8 image_type = %i;\nuint16 colormap_index = %i;\nuint16 colormap_length = %i;\nuint8 colormap_size = %i;\nuint16 x_origin = %i;\nuint16 y_origin = %i;\nuint16 width = %i;\nuint16 height = %i;\nuint8 pixel_size = %i;\nuint8 attributes = %i;\n", t->id_length, t->colormap_type, t->image_type, t->colormap_index, t->colormap_length, t->colormap_size, t->x_origin, t->y_origin, t->width, t->height, t->pixel_size, t->attributes);
377 unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
379 int x, y, pix_inc, row_inci, runlen, alphabits;
380 unsigned char *image_buffer;
381 unsigned int *pixbufi;
382 const unsigned char *fin, *enddata;
383 TargaHeader targa_header;
384 unsigned int palettei[256];
395 enddata = f + filesize;
397 targa_header.id_length = f[0];
398 targa_header.colormap_type = f[1];
399 targa_header.image_type = f[2];
401 targa_header.colormap_index = f[3] + f[4] * 256;
402 targa_header.colormap_length = f[5] + f[6] * 256;
403 targa_header.colormap_size = f[7];
404 targa_header.x_origin = f[8] + f[9] * 256;
405 targa_header.y_origin = f[10] + f[11] * 256;
406 targa_header.width = image_width = f[12] + f[13] * 256;
407 targa_header.height = image_height = f[14] + f[15] * 256;
408 targa_header.pixel_size = f[16];
409 targa_header.attributes = f[17];
411 if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
413 Con_Print("LoadTGA: invalid size\n");
414 PrintTargaHeader(&targa_header);
418 // advance to end of header
421 // skip TARGA image comment (usually 0 bytes)
422 fin += targa_header.id_length;
424 // read/skip the colormap if present (note: according to the TARGA spec it
425 // can be present even on truecolor or greyscale images, just not used by
427 if (targa_header.colormap_type)
429 if (targa_header.colormap_length > 256)
431 Con_Print("LoadTGA: only up to 256 colormap_length supported\n");
432 PrintTargaHeader(&targa_header);
435 if (targa_header.colormap_index)
437 Con_Print("LoadTGA: colormap_index not supported\n");
438 PrintTargaHeader(&targa_header);
441 if (targa_header.colormap_size == 24)
443 for (x = 0;x < targa_header.colormap_length;x++)
449 palettei[x] = bgra.i;
452 else if (targa_header.colormap_size == 32)
454 memcpy(palettei, fin, targa_header.colormap_length*4);
455 fin += targa_header.colormap_length * 4;
459 Con_Print("LoadTGA: Only 32 and 24 bit colormap_size supported\n");
460 PrintTargaHeader(&targa_header);
465 // check our pixel_size restrictions according to image_type
466 switch (targa_header.image_type & ~8)
469 if (targa_header.pixel_size != 24 && targa_header.pixel_size != 32)
471 Con_Print("LoadTGA: only 24bit and 32bit pixel sizes supported for type 2 and type 10 images\n");
472 PrintTargaHeader(&targa_header);
477 // set up a palette to make the loader easier
478 for (x = 0;x < 256;x++)
480 bgra.b[0] = bgra.b[1] = bgra.b[2] = x;
482 palettei[x] = bgra.i;
484 // fall through to colormap case
486 if (targa_header.pixel_size != 8)
488 Con_Print("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n");
489 PrintTargaHeader(&targa_header);
494 Con_Printf("LoadTGA: Only type 1, 2, 3, 9, 10, and 11 targa RGB images supported, image_type = %i\n", targa_header.image_type);
495 PrintTargaHeader(&targa_header);
499 if (targa_header.attributes & 0x10)
501 Con_Print("LoadTGA: origin must be in top left or bottom left, top right and bottom right are not supported\n");
505 // number of attribute bits per pixel, we only support 0 or 8
506 alphabits = targa_header.attributes & 0x0F;
507 if (alphabits != 8 && alphabits != 0)
509 Con_Print("LoadTGA: only 0 or 8 attribute (alpha) bits supported\n");
513 image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
516 Con_Printf("LoadTGA: not enough memory for %i by %i image\n", image_width, image_height);
520 // If bit 5 of attributes isn't set, the image has been stored from bottom to top
521 if ((targa_header.attributes & 0x20) == 0)
523 pixbufi = (unsigned int*)image_buffer + (image_height - 1)*image_width;
524 row_inci = -image_width*2;
528 pixbufi = (unsigned int*)image_buffer;
535 if ((targa_header.image_type & ~8) == 2)
536 pix_inc = (targa_header.pixel_size + 7) / 8;
537 switch (targa_header.image_type)
539 case 1: // colormapped, uncompressed
540 case 3: // greyscale, uncompressed
541 if (fin + image_width * image_height * pix_inc > enddata)
543 for (y = 0;y < image_height;y++, pixbufi += row_inci)
544 for (x = 0;x < image_width;x++)
545 *pixbufi++ = palettei[*fin++];
548 // BGR or BGRA, uncompressed
549 if (fin + image_width * image_height * pix_inc > enddata)
551 if (targa_header.pixel_size == 32 && alphabits)
553 for (y = 0;y < image_height;y++)
554 memcpy(pixbufi + y * (image_width + row_inci), fin + y * image_width * pix_inc, image_width*4);
558 for (y = 0;y < image_height;y++, pixbufi += row_inci)
560 for (x = 0;x < image_width;x++, fin += pix_inc)
571 case 9: // colormapped, RLE
572 case 11: // greyscale, RLE
573 for (y = 0;y < image_height;y++, pixbufi += row_inci)
575 for (x = 0;x < image_width;)
578 break; // error - truncated file
582 // RLE - all pixels the same color
584 if (fin + pix_inc > enddata)
585 break; // error - truncated file
586 if (x + runlen > image_width)
587 break; // error - line exceeds width
588 bgra.i = palettei[*fin++];
594 // uncompressed - all pixels different color
596 if (fin + pix_inc * runlen > enddata)
597 break; // error - truncated file
598 if (x + runlen > image_width)
599 break; // error - line exceeds width
601 *pixbufi++ = palettei[*fin++];
608 if (targa_header.pixel_size == 32 && alphabits)
610 for (y = 0;y < image_height;y++, pixbufi += row_inci)
612 for (x = 0;x < image_width;)
615 break; // error - truncated file
619 // RLE - all pixels the same color
621 if (fin + pix_inc > enddata)
622 break; // error - truncated file
623 if (x + runlen > image_width)
624 break; // error - line exceeds width
635 // uncompressed - all pixels different color
637 if (fin + pix_inc * runlen > enddata)
638 break; // error - truncated file
639 if (x + runlen > image_width)
640 break; // error - line exceeds width
656 for (y = 0;y < image_height;y++, pixbufi += row_inci)
658 for (x = 0;x < image_width;)
661 break; // error - truncated file
665 // RLE - all pixels the same color
667 if (fin + pix_inc > enddata)
668 break; // error - truncated file
669 if (x + runlen > image_width)
670 break; // error - line exceeds width
681 // uncompressed - all pixels different color
683 if (fin + pix_inc * runlen > enddata)
684 break; // error - truncated file
685 if (x + runlen > image_width)
686 break; // error - line exceeds width
702 // unknown image_type
709 typedef struct q2wal_s
712 unsigned width, height;
713 unsigned offsets[MIPLEVELS]; // four mip maps stored
714 char animname[32]; // next frame in animation chain
720 unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize)
722 unsigned char *image_buffer;
723 const q2wal_t *inwal = (const q2wal_t *)f;
725 if (filesize < (int) sizeof(q2wal_t))
727 Con_Print("LoadWAL: invalid WAL file\n");
731 image_width = LittleLong(inwal->width);
732 image_height = LittleLong(inwal->height);
733 if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
735 Con_Printf("LoadWAL: invalid size %ix%i\n", image_width, image_height);
739 if (filesize < (int) sizeof(q2wal_t) + (int) LittleLong(inwal->offsets[0]) + image_width * image_height)
741 Con_Print("LoadWAL: invalid WAL file\n");
745 image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
748 Con_Printf("LoadWAL: not enough memory for %i by %i image\n", image_width, image_height);
751 Image_Copy8bitBGRA(f + LittleLong(inwal->offsets[0]), image_buffer, image_width * image_height, palette_bgra_complete);
756 void Image_StripImageExtension (const char *in, char *out, size_t size_out)
763 ext = FS_FileExtension(in);
764 if (ext && (!strcmp(ext, "tga") || !strcmp(ext, "pcx") || !strcmp(ext, "lmp") || !strcmp(ext, "png") || !strcmp(ext, "jpg")))
765 FS_StripExtension(in, out, size_out);
767 strlcpy(out, in, size_out);
770 typedef struct imageformat_s
772 const char *formatstring;
773 unsigned char *(*loadfunc)(const unsigned char *f, int filesize);
777 // GAME_TENEBRAE only
778 imageformat_t imageformats_tenebrae[] =
780 {"override/%s.tga", LoadTGA_BGRA},
781 {"override/%s.png", PNG_LoadImage_BGRA},
782 {"override/%s.jpg", JPEG_LoadImage_BGRA},
783 {"override/%s.pcx", LoadPCX_BGRA},
784 {"%s.tga", LoadTGA_BGRA},
785 {"%s.png", PNG_LoadImage_BGRA},
786 {"%s.jpg", JPEG_LoadImage_BGRA},
787 {"%s.pcx", LoadPCX_BGRA},
791 imageformat_t imageformats_nopath[] =
793 {"override/%s.tga", LoadTGA_BGRA},
794 {"override/%s.png", PNG_LoadImage_BGRA},
795 {"override/%s.jpg", JPEG_LoadImage_BGRA},
796 {"textures/%s.tga", LoadTGA_BGRA},
797 {"textures/%s.png", PNG_LoadImage_BGRA},
798 {"textures/%s.jpg", JPEG_LoadImage_BGRA},
799 {"%s.tga", LoadTGA_BGRA},
800 {"%s.png", PNG_LoadImage_BGRA},
801 {"%s.jpg", JPEG_LoadImage_BGRA},
802 {"%s.pcx", LoadPCX_BGRA},
806 // GAME_DELUXEQUAKE only
807 // VorteX: the point why i use such messy texture paths is
808 // that GtkRadiant can't detect normal/gloss textures
809 // and exclude them from texture browser
810 // so i just use additional folder to store this textures
811 imageformat_t imageformats_dq[] =
813 {"%s.tga", LoadTGA_BGRA},
814 {"%s.jpg", JPEG_LoadImage_BGRA},
815 {"texturemaps/%s.tga", LoadTGA_BGRA},
816 {"texturemaps/%s.jpg", JPEG_LoadImage_BGRA},
820 imageformat_t imageformats_textures[] =
822 {"%s.tga", LoadTGA_BGRA},
823 {"%s.png", PNG_LoadImage_BGRA},
824 {"%s.jpg", JPEG_LoadImage_BGRA},
825 {"%s.pcx", LoadPCX_BGRA},
826 {"%s.wal", LoadWAL_BGRA},
830 imageformat_t imageformats_gfx[] =
832 {"%s.tga", LoadTGA_BGRA},
833 {"%s.png", PNG_LoadImage_BGRA},
834 {"%s.jpg", JPEG_LoadImage_BGRA},
835 {"%s.pcx", LoadPCX_BGRA},
839 imageformat_t imageformats_other[] =
841 {"%s.tga", LoadTGA_BGRA},
842 {"%s.png", PNG_LoadImage_BGRA},
843 {"%s.jpg", JPEG_LoadImage_BGRA},
844 {"%s.pcx", LoadPCX_BGRA},
848 int fixtransparentpixels(unsigned char *data, int w, int h);
849 unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qboolean allowFixtrans)
851 fs_offset_t filesize;
852 imageformat_t *firstformat, *format;
853 unsigned char *f, *data = NULL;
854 char basename[MAX_QPATH], name[MAX_QPATH], *c;
855 if (developer_memorydebug.integer)
856 Mem_CheckSentinelsGlobal();
857 if (developer_texturelogging.integer)
858 Log_Printf("textures.log", "%s\n", filename);
859 Image_StripImageExtension(filename, basename, sizeof(basename)); // strip filename extensions to allow replacement by other types
860 // replace *'s with #, so commandline utils don't get confused when dealing with the external files
861 for (c = basename;*c;c++)
865 if (strchr(basename, '/'))
868 for (i = 0;i < (int)sizeof(name)-1 && basename[i] != '/';i++)
869 name[i] = basename[i];
872 if (gamemode == GAME_TENEBRAE)
873 firstformat = imageformats_tenebrae;
874 else if (gamemode == GAME_DELUXEQUAKE)
875 firstformat = imageformats_dq;
876 else if (!strcasecmp(name, "textures"))
877 firstformat = imageformats_textures;
878 else if (!strcasecmp(name, "gfx"))
879 firstformat = imageformats_gfx;
880 else if (!strchr(basename, '/'))
881 firstformat = imageformats_nopath;
883 firstformat = imageformats_other;
884 // now try all the formats in the selected list
885 for (format = firstformat;format->formatstring;format++)
887 dpsnprintf (name, sizeof(name), format->formatstring, basename);
888 f = FS_LoadFile(name, tempmempool, true, &filesize);
891 data = format->loadfunc(f, filesize);
895 if (developer.integer >= 10)
896 Con_Printf("loaded image %s (%dx%d)\n", name, image_width, image_height);
897 if (developer_memorydebug.integer)
898 Mem_CheckSentinelsGlobal();
899 if(allowFixtrans && r_fixtrans_auto.integer)
901 int n = fixtransparentpixels(data, image_width, image_height);
904 Con_Printf("- had to fix %s (%d pixels changed)\n", name, n);
905 if(r_fixtrans_auto.integer >= 2)
907 char outfilename[MAX_QPATH], buf[MAX_QPATH];
908 Image_StripImageExtension(name, buf, sizeof(buf));
909 dpsnprintf(outfilename, sizeof(outfilename), "fixtrans/%s.tga", buf);
910 Image_WriteTGABGRA(outfilename, image_width, image_height, data);
911 Con_Printf("- %s written.\n", outfilename);
918 Con_DPrintf("Error loading image %s (file loaded but decode failed)\n", name);
923 Con_Printf("Couldn't load %s using ", filename);
924 for (format = firstformat;format->formatstring;format++)
926 dpsnprintf (name, sizeof(name), format->formatstring, basename);
927 Con_Printf(format == firstformat ? "\"%s\"" : (format[1].formatstring ? ", \"%s\"" : " or \"%s\".\n"), format->formatstring);
931 // texture loading can take a while, so make sure we're sending keepalives
932 CL_KeepaliveMessage(false);
934 if (developer_memorydebug.integer)
935 Mem_CheckSentinelsGlobal();
939 rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans)
943 if (!(data = loadimagepixelsbgra (filename, complain, allowFixtrans)))
945 rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_BGRA, flags, NULL);
950 int fixtransparentpixels(unsigned char *data, int w, int h)
952 int const FIXTRANS_NEEDED = 1;
953 int const FIXTRANS_HAS_L = 2;
954 int const FIXTRANS_HAS_R = 4;
955 int const FIXTRANS_HAS_U = 8;
956 int const FIXTRANS_HAS_D = 16;
957 int const FIXTRANS_FIXED = 32;
958 unsigned char *fixMask = (unsigned char *) Mem_Alloc(tempmempool, w * h);
960 int changedPixels = 0;
963 #define FIXTRANS_PIXEL (y*w+x)
964 #define FIXTRANS_PIXEL_U (((y+h-1)%h)*w+x)
965 #define FIXTRANS_PIXEL_D (((y+1)%h)*w+x)
966 #define FIXTRANS_PIXEL_L (y*w+((x+w-1)%w))
967 #define FIXTRANS_PIXEL_R (y*w+((x+1)%w))
969 memset(fixMask, 0, w * h);
970 for(y = 0; y < h; ++y)
971 for(x = 0; x < w; ++x)
973 if(data[FIXTRANS_PIXEL * 4 + 3] == 0)
975 fixMask[FIXTRANS_PIXEL] |= FIXTRANS_NEEDED;
980 fixMask[FIXTRANS_PIXEL_D] |= FIXTRANS_HAS_U;
981 fixMask[FIXTRANS_PIXEL_U] |= FIXTRANS_HAS_D;
982 fixMask[FIXTRANS_PIXEL_R] |= FIXTRANS_HAS_L;
983 fixMask[FIXTRANS_PIXEL_L] |= FIXTRANS_HAS_R;
986 if(fixPixels == w * h)
987 return 0; // sorry, can't do anything about this
990 for(y = 0; y < h; ++y)
991 for(x = 0; x < w; ++x)
992 if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_NEEDED)
994 unsigned int sumR = 0, sumG = 0, sumB = 0, sumA = 0, sumRA = 0, sumGA = 0, sumBA = 0, cnt = 0;
995 unsigned char r, g, b, a, r0, g0, b0;
996 if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_U)
998 r = data[FIXTRANS_PIXEL_U * 4 + 2];
999 g = data[FIXTRANS_PIXEL_U * 4 + 1];
1000 b = data[FIXTRANS_PIXEL_U * 4 + 0];
1001 a = data[FIXTRANS_PIXEL_U * 4 + 3];
1002 sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt;
1004 if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_D)
1006 r = data[FIXTRANS_PIXEL_D * 4 + 2];
1007 g = data[FIXTRANS_PIXEL_D * 4 + 1];
1008 b = data[FIXTRANS_PIXEL_D * 4 + 0];
1009 a = data[FIXTRANS_PIXEL_D * 4 + 3];
1010 sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt;
1012 if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_L)
1014 r = data[FIXTRANS_PIXEL_L * 4 + 2];
1015 g = data[FIXTRANS_PIXEL_L * 4 + 1];
1016 b = data[FIXTRANS_PIXEL_L * 4 + 0];
1017 a = data[FIXTRANS_PIXEL_L * 4 + 3];
1018 sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt;
1020 if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_HAS_R)
1022 r = data[FIXTRANS_PIXEL_R * 4 + 2];
1023 g = data[FIXTRANS_PIXEL_R * 4 + 1];
1024 b = data[FIXTRANS_PIXEL_R * 4 + 0];
1025 a = data[FIXTRANS_PIXEL_R * 4 + 3];
1026 sumR += r; sumG += g; sumB += b; sumA += a; sumRA += r*a; sumGA += g*a; sumBA += b*a; ++cnt;
1030 r0 = data[FIXTRANS_PIXEL * 4 + 2];
1031 g0 = data[FIXTRANS_PIXEL * 4 + 1];
1032 b0 = data[FIXTRANS_PIXEL * 4 + 0];
1035 // there is a surrounding non-alpha pixel
1036 r = (sumRA + sumA / 2) / sumA;
1037 g = (sumGA + sumA / 2) / sumA;
1038 b = (sumBA + sumA / 2) / sumA;
1042 // need to use a "regular" average
1043 r = (sumR + cnt / 2) / cnt;
1044 g = (sumG + cnt / 2) / cnt;
1045 b = (sumB + cnt / 2) / cnt;
1047 if(r != r0 || g != g0 || b != b0)
1049 data[FIXTRANS_PIXEL * 4 + 2] = r;
1050 data[FIXTRANS_PIXEL * 4 + 1] = g;
1051 data[FIXTRANS_PIXEL * 4 + 0] = b;
1052 fixMask[FIXTRANS_PIXEL] |= FIXTRANS_FIXED;
1054 for(y = 0; y < h; ++y)
1055 for(x = 0; x < w; ++x)
1056 if(fixMask[FIXTRANS_PIXEL] & FIXTRANS_FIXED)
1058 fixMask[FIXTRANS_PIXEL] &= ~(FIXTRANS_NEEDED | FIXTRANS_FIXED);
1059 fixMask[FIXTRANS_PIXEL_D] |= FIXTRANS_HAS_U;
1060 fixMask[FIXTRANS_PIXEL_U] |= FIXTRANS_HAS_D;
1061 fixMask[FIXTRANS_PIXEL_R] |= FIXTRANS_HAS_L;
1062 fixMask[FIXTRANS_PIXEL_L] |= FIXTRANS_HAS_R;
1066 return changedPixels;
1069 void Image_FixTransparentPixels_f(void)
1071 const char *filename, *filename_pattern;
1074 char outfilename[MAX_QPATH], buf[MAX_QPATH];
1075 unsigned char *data;
1078 Con_Printf("Usage: %s imagefile\n", Cmd_Argv(0));
1081 filename_pattern = Cmd_Argv(1);
1082 search = FS_Search(filename_pattern, true, true);
1085 for(i = 0; i < search->numfilenames; ++i)
1087 filename = search->filenames[i];
1088 Con_Printf("Processing %s... ", filename);
1089 Image_StripImageExtension(filename, buf, sizeof(buf));
1090 dpsnprintf(outfilename, sizeof(outfilename), "fixtrans/%s.tga", buf);
1091 if(!(data = loadimagepixelsbgra(filename, true, false)))
1093 if((n = fixtransparentpixels(data, image_width, image_height)))
1095 Image_WriteTGABGRA(outfilename, image_width, image_height, data);
1096 Con_Printf("%s written (%d pixels changed).\n", outfilename, n);
1099 Con_Printf("unchanged.\n");
1102 FS_FreeSearch(search);
1105 qboolean Image_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data, unsigned char *buffer)
1109 memset (buffer, 0, 18);
1110 buffer[2] = 2; // uncompressed type
1111 buffer[12] = (width >> 0) & 0xFF;
1112 buffer[13] = (width >> 8) & 0xFF;
1113 buffer[14] = (height >> 0) & 0xFF;
1114 buffer[15] = (height >> 8) & 0xFF;
1115 buffer[16] = 24; // pixel size
1118 memcpy(buffer + 18, data, width*height*3);
1119 ret = FS_WriteFile (filename, buffer, width*height*3 + 18 );
1124 void Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data)
1127 unsigned char *buffer, *out;
1128 const unsigned char *in, *end;
1130 buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*4 + 18);
1132 memset (buffer, 0, 18);
1133 buffer[2] = 2; // uncompressed type
1134 buffer[12] = (width >> 0) & 0xFF;
1135 buffer[13] = (width >> 8) & 0xFF;
1136 buffer[14] = (height >> 0) & 0xFF;
1137 buffer[15] = (height >> 8) & 0xFF;
1139 for (y = 3;y < width*height*4;y += 4)
1143 if (y < width*height*4)
1145 // save the alpha channel
1146 buffer[16] = 32; // pixel size
1147 buffer[17] = 8; // 8 bits of alpha
1151 for (y = height - 1;y >= 0;y--)
1153 memcpy(out, data + y * width * 4, width * 4);
1159 // save only the color channels
1160 buffer[16] = 24; // pixel size
1161 buffer[17] = 0; // 8 bits of alpha
1163 // truncate bgra to bgr and flip upside down
1165 for (y = height - 1;y >= 0;y--)
1167 in = data + y * width * 4;
1168 end = in + width * 4;
1169 for (;in < end;in += 4)
1177 FS_WriteFile (filename, buffer, out - buffer);
1182 static void Image_Resample32LerpLine (const unsigned char *in, unsigned char *out, int inwidth, int outwidth)
1184 int j, xi, oldx = 0, f, fstep, endx, lerp;
1185 fstep = (int) (inwidth*65536.0f/outwidth);
1187 for (j = 0,f = 0;j < outwidth;j++, f += fstep)
1192 in += (xi - oldx) * 4;
1198 *out++ = (unsigned char) ((((in[4] - in[0]) * lerp) >> 16) + in[0]);
1199 *out++ = (unsigned char) ((((in[5] - in[1]) * lerp) >> 16) + in[1]);
1200 *out++ = (unsigned char) ((((in[6] - in[2]) * lerp) >> 16) + in[2]);
1201 *out++ = (unsigned char) ((((in[7] - in[3]) * lerp) >> 16) + in[3]);
1203 else // last pixel of the line has no pixel to lerp to
1213 #define LERPBYTE(i) r = resamplerow1[i];out[i] = (unsigned char) ((((resamplerow2[i] - r) * lerp) >> 16) + r)
1214 void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
1216 int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth4 = inwidth*4, outwidth4 = outwidth*4;
1218 const unsigned char *inrow;
1219 unsigned char *resamplerow1;
1220 unsigned char *resamplerow2;
1221 out = (unsigned char *)outdata;
1222 fstep = (int) (inheight*65536.0f/outheight);
1224 resamplerow1 = (unsigned char *)Mem_Alloc(tempmempool, outwidth*4*2);
1225 resamplerow2 = resamplerow1 + outwidth*4;
1227 inrow = (const unsigned char *)indata;
1229 Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
1230 Image_Resample32LerpLine (inrow + inwidth4, resamplerow2, inwidth, outwidth);
1231 for (i = 0, f = 0;i < outheight;i++,f += fstep)
1239 inrow = (unsigned char *)indata + inwidth4*yi;
1241 memcpy(resamplerow1, resamplerow2, outwidth4);
1243 Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
1244 Image_Resample32LerpLine (inrow + inwidth4, resamplerow2, inwidth, outwidth);
1295 resamplerow1 -= outwidth4;
1296 resamplerow2 -= outwidth4;
1302 inrow = (unsigned char *)indata + inwidth4*yi;
1304 memcpy(resamplerow1, resamplerow2, outwidth4);
1306 Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
1309 memcpy(out, resamplerow1, outwidth4);
1313 Mem_Free(resamplerow1);
1314 resamplerow1 = NULL;
1315 resamplerow2 = NULL;
1318 void Image_Resample32Nolerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
1321 unsigned frac, fracstep;
1322 // relies on int being 4 bytes
1324 out = (int *)outdata;
1326 fracstep = inwidth*0x10000/outwidth;
1327 for (i = 0;i < outheight;i++)
1329 inrow = (int *)indata + inwidth*(i*inheight/outheight);
1330 frac = fracstep >> 1;
1334 out[0] = inrow[frac >> 16];frac += fracstep;
1335 out[1] = inrow[frac >> 16];frac += fracstep;
1336 out[2] = inrow[frac >> 16];frac += fracstep;
1337 out[3] = inrow[frac >> 16];frac += fracstep;
1343 out[0] = inrow[frac >> 16];frac += fracstep;
1344 out[1] = inrow[frac >> 16];frac += fracstep;
1349 out[0] = inrow[frac >> 16];frac += fracstep;
1360 void Image_Resample32(const void *indata, int inwidth, int inheight, int indepth, void *outdata, int outwidth, int outheight, int outdepth, int quality)
1362 if (indepth != 1 || outdepth != 1)
1364 Con_Printf ("Image_Resample: 3D resampling not supported\n");
1368 Image_Resample32Lerp(indata, inwidth, inheight, outdata, outwidth, outheight);
1370 Image_Resample32Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight);
1373 // in can be the same as out
1374 void Image_MipReduce32(const unsigned char *in, unsigned char *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth)
1376 const unsigned char *inrow;
1378 if (*depth != 1 || destdepth != 1)
1380 Con_Printf ("Image_Resample: 3D resampling not supported\n");
1381 if (*width > destwidth)
1383 if (*height > destheight)
1385 if (*depth > destdepth)
1389 // note: if given odd width/height this discards the last row/column of
1390 // pixels, rather than doing a proper box-filter scale down
1392 nextrow = *width * 4;
1393 if (*width > destwidth)
1396 if (*height > destheight)
1400 for (y = 0;y < *height;y++, inrow += nextrow * 2)
1402 for (in = inrow, x = 0;x < *width;x++)
1404 out[0] = (unsigned char) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2);
1405 out[1] = (unsigned char) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2);
1406 out[2] = (unsigned char) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2);
1407 out[3] = (unsigned char) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2);
1416 for (y = 0;y < *height;y++, inrow += nextrow)
1418 for (in = inrow, x = 0;x < *width;x++)
1420 out[0] = (unsigned char) ((in[0] + in[4]) >> 1);
1421 out[1] = (unsigned char) ((in[1] + in[5]) >> 1);
1422 out[2] = (unsigned char) ((in[2] + in[6]) >> 1);
1423 out[3] = (unsigned char) ((in[3] + in[7]) >> 1);
1432 if (*height > destheight)
1436 for (y = 0;y < *height;y++, inrow += nextrow * 2)
1438 for (in = inrow, x = 0;x < *width;x++)
1440 out[0] = (unsigned char) ((in[0] + in[nextrow ]) >> 1);
1441 out[1] = (unsigned char) ((in[1] + in[nextrow+1]) >> 1);
1442 out[2] = (unsigned char) ((in[2] + in[nextrow+2]) >> 1);
1443 out[3] = (unsigned char) ((in[3] + in[nextrow+3]) >> 1);
1450 Con_Printf ("Image_MipReduce: desired size already achieved\n");
1454 void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale)
1456 int x, y, x1, x2, y1, y2;
1457 const unsigned char *b, *row[3];
1460 float iwidth, iheight, ibumpscale, n[3];
1461 iwidth = 1.0f / width;
1462 iheight = 1.0f / height;
1463 ibumpscale = (255.0f * 6.0f) / bumpscale;
1465 for (y = 0, y1 = height-1;y < height;y1 = y, y++)
1467 y2 = y + 1;if (y2 >= height) y2 = 0;
1468 row[0] = inpixels + (y1 * width) * 4;
1469 row[1] = inpixels + (y * width) * 4;
1470 row[2] = inpixels + (y2 * width) * 4;
1471 for (x = 0, x1 = width-1;x < width;x1 = x, x++)
1473 x2 = x + 1;if (x2 >= width) x2 = 0;
1475 b = row[1] + x1 * 4;p[0] = (b[0] + b[1] + b[2]);
1476 b = row[1] + x2 * 4;p[1] = (b[0] + b[1] + b[2]);
1478 b = row[0] + x * 4;p[2] = (b[0] + b[1] + b[2]);
1479 b = row[2] + x * 4;p[3] = (b[0] + b[1] + b[2]);
1481 b = row[1] + x * 4;p[4] = (b[0] + b[1] + b[2]);
1482 // calculate a normal from the slopes
1487 // turn it into a dot3 rgb vector texture
1488 out[2] = (int)(128.0f + n[0] * 127.0f);
1489 out[1] = (int)(128.0f + n[1] * 127.0f);
1490 out[0] = (int)(128.0f + n[2] * 127.0f);
1491 out[3] = (p[4]) / 3;